Cited by 747Cancer Genomics and DiagnosticsGenetic factors in colorectal cancerColorectal Cancer Screening and Detection

The landscape of somatic mutation in normal colorectal epithelial cells

Lee-Six, Henry, Olafsson, Sigurgeir, Ellis, Peter, Osborne, Robert J., Sanders, Mathijs A., Moore, Luiza, Georgakopoulos, Nikitas, Torrente, Franco +14 more·2019·Nature

Published version of a preprint

Abstract

The colorectal adenoma-carcinoma sequence has provided a paradigmatic framework for understanding the successive somatic genetic changes and consequent clonal expansions that lead to cancer 1. However, our understanding of the earliest phases of colorectal neoplastic changes-which may occur in morphologically normal tissue-is comparatively limited, as for most cancer types. Here we use whole-genome sequencing to analyse hundreds of normal crypts from 42 individuals. Signatures of multiple mutational processes were revealed; some of these were ubiquitous and continuous, whereas others were only found in some individuals, in some crypts or during certain periods of life. Probable driver mutations were present in around 1% of normal colorectal crypts in middle-aged individuals, indicating that adenomas and carcinomas are rare outcomes of a pervasive process of neoplastic change across morphologically normal colorectal epithelium. Colorectal cancers exhibit substantially increased mutational burdens relative to normal cells. Sequencing normal colorectal cells provides quantitative insights into the genomic and clonal evolution of cancer.

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  • Cancer research suggests that colibactin causes DNA damage early after exposure.

    “cancer research suggests that colibactin causes DNA damage early after exposure [157, 158].”

    From Selection, Comparative Genomics, and Potential Probiotic Features of Escherichia coli 5C, a pks-Negative Strain Isolated from Healthy Infant Donor Feces (2026) · cites this paper as [157]

    The Sporadic mutational signatures section (p. 4) describes an early-life mutational process but says its initiating event is unknown. A search for colibactin found no passage in our copy linking it to DNA damage or establishing how soon damage occurs after exposure. (LLM, conf=0.75)

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  • Clonal expansion has also been found in other human tissues, including skin, colon and oesophagus, and is thought to be a normal, possibly ubiquitous, process associated with ageing in all tissues, in particular those that experience significant cellular turnover.

    “Clonal expansion has also been found in other human tissues, including skin, colon and oesophagus52–54, and is thought to be a normal, possibly ubiquitous, process that is associated with ageing in all tissues, in particular those that experience significant cellular turnover.”

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Authors
Lee-Six, H., Olafsson, S., Ellis, P., Osborne, R. J., Sanders, M. A., Moore, L., Georgakopoulos, N., Torrente, F., Noorani, A., Goddard, M., Robinson, P., Coorens, T. H. H., O’Neill, L., Alder, C., Wang, J., Fitzgerald, R. C., Zilbauer, M., Coleman, N., Saeb-Parsy, K., Martincorena, I., Campbell, P. J., & Stratton, M. R.
Affiliations
  • Wellcome Sanger Institute (GB)
  • Erasmus MC (NL)
  • University of Cambridge (GB)
  • Addenbrooke's Hospital (GB)
  • Royal Papworth Hospital (GB)
Corresponding author
Stratton, Michael R.
Venue
Nature
Published
2019-10-23
Volume
574
Issue
7779
Pages
532-537
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2981552021
Cited by
747
References
60
Citations by year
2026: 78 · 2025: 98 · 2024: 93 · 2023: 111 · 2022: 135 · 2021: 120 · 2020: 93 · 2019: 18 · 2018: 1
FWCI
28.95
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • EUR Research Repository (Erasmus University Rotterdam) (publishedVersion)
  • EUR Research Repository (Erasmus University Rotterdam) (submittedVersion)
Funders
  • European Hematology Association (TRTH182)
  • Wellcome Trust (103858/Z/14/Z)
  • Cancer Research UK (S_3369, 21777)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer Genomics and Diagnostics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Genetic factors in colorectal cancer
  • Health Sciences › Medicine › Oncology › Colorectal Cancer Screening and Detection
Keywords
somatic mutations, colorectal epithelium, colonic crypts, mutational signatures, mutational processes, driver mutations, colorectal adenoma-carcinoma sequence, mutational burden, clonal evolution, normal tissue, colorectal cancer
MeSH terms
Adenoma, Aged, Carcinoma, Cell Transformation, Neoplastic, Clone Cells, Colon, DNA Mutational Analysis, Epithelial Cells, Female, Humans, Intestinal Mucosa, Male, Middle Aged, Mutation, Rectum, Stem Cells, Colorectal Neoplasms, DNA Copy Number Variations, Axin Protein, Prodromal Symptoms

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